Sleeping on deck

An Instagram photo provided by a passenger of the Carnival cruise ship Triumph identifying himself as Mikemoonpie shows passengers lying on mattresses on the third deck of the ship as it is towed toward Mobile, Ala., on Wednesday. The stricken Carnival cruise ship Triumph arrived back in port late Thursday, ending a nightmarish ocean voyage for some 4,000 passengers and crew after the ship lost power over the weekend.

An Instagram photo provided by a passenger of the Carnival cruise ship Triumph identifying himself as Mikemoonpie shows passengers lying on mattresses on the third deck of the ship as it is towed toward Mobile, Ala., on Wednesday. The stricken Carnival cruise ship Triumph arrived back in port late Thursday, ending a nightmarish ocean voyage for some 4,000 passengers and crew after the ship lost power over the weekend. (Mikemoonpie / AFP Getty Images)

An Instagram photo provided by a passenger of the Carnival cruise ship Triumph identifying himself as Mikemoonpie shows passengers lying on mattresses on the third deck of the ship as it is towed toward Mobile, Ala., on Wednesday. The stricken Carnival cruise ship Triumph arrived back in port late Thursday, ending a nightmarish ocean voyage for some 4,000 passengers and crew after the ship lost power over the weekend.Mikemoonpie / AFP Getty Images